A dream of these short and seemingly random cacophonous video images is your subconscious deprogramming, cleansing and releasing the data it received during the day. Consider the content and feeling tone to discern the message. See Processing Dreams.
Content related to the blipverts symbol in the dream to be added later. Keep searching for other symbols you see in your dream
The dream symbol you are looking for is absolutely there, try searching the symbol one by one.